20 points+ question 1 earth is like a bar magnet. what does this mean about its magnetic poles? there are two magnetic north poles. there is only a magnetic north pole. there are both magnetic north and south poles. there is only a magnetic south pole. 2 points save answer question 2 which of the following statements about electric charges and magnetic domains is true? electric charges must come in pairs—one positive and one negative. magnetic domains must come in pairs—one north and one south. electric charges and magnetic domains must come in pairs—one north and one south. electric charges and magnetic domains must come in pairs—one positive and one negative. question 4 which material cannot be made into a magnet? aluminum cobalt iron nickel 2 points save answer question 5 which material has magnetic domains and can be made into a magnet? a glass bottle an aluminum can an iron nail a plastic fork
Answers: 2
Physics, 22.06.2019 09:00
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
Answers: 2
Physics, 22.06.2019 19:30
Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?
Answers: 2
Physics, 22.06.2019 19:30
Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
Answers: 1
Physics, 22.06.2019 20:00
Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?
Answers: 3
20 points+ question 1 earth is like a bar magnet. what does this mean about its magnetic poles? th...
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